Bromine monofluoride

Bromine monofluoride is a quite unstable interhalogen compound with the chemical formula BrF. It can be produced through the reaction of bromine trifluoride (or bromine pentafluoride) and bromine. Due to its lability, the compound can be detected but not isolated:[2]

BrF₃ + Br₂ → 3 BrF

BrF₅ + 2 Br₂ → 5 BrF

Br_2(l) + F_2(g) → 2 BrF_(g)

Bromine monofluoride

Names
IUPAC name Bromine fluoride
Identifiers
CAS Number	13863-59-7
3D model (JSmol)	Interactive image
ChemSpider	20474212
PubChem CID	139632
UN number	1745
CompTox Dashboard (EPA)	DTXSID60160735
InChI InChI=1S/BrF/c1-2 Key: MZJUGRUTVANEDW-UHFFFAOYSA-N
SMILES FBr
Properties
Chemical formula	BrF
Molar mass	98.903 g/mol
Density	4.403 g/L [1]
Melting point	−33 °C (−27 °F; 240 K)[1]
Boiling point	20 °C (68 °F; 293 K) (decomposes)[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

It is usually generated in the presence of cesium fluoride.[3]

Bromine monofluoride decomposes at normal temperature through dismutation to bromine trifluoride, bromine pentafluoride, and free bromine.

See also

• Bromine trifluoride, BrF₃
• Bromine pentafluoride, BrF₅

References

1. David R. Lide: CRC Handbook of Chemistry and Physics. 89. Auflage, Taylor & Francis, 2008, ISBN 978-1-4200-6679-1, S. 4–53.
2. Macintyre, J. E.; Daniel, F. M.; Stirling, V. M. (1992). Dictionary of Inorganic Compounds. CRC Press. p. 285. ISBN 978-0-412-30120-9.
3. Winter, Rolf; Terjeson, Robin J.; Gard, Gary L. (1998). "An Improved and Facile Preparation of SF₅Br". Journal of Fluorine Chemistry. 89: 105–106. doi:10.1016/S0022-1139(98)00094-3.